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rob-shill asked

B2B charger and separate solar setup - how do I wire up?

Hi all-

I have just changed out my split charge to B2B non isolated as the previous owner shouldn’t have installed the voltage sensing split charge being that I have a smart alternator. It’s working great.


i also have 2 80w solar panels on the roof. They go into a current MPPT controller (PV logic). It’s an mppt that has two battery outputs. So one wire goes to the starter battery and the other to my leisure lithium battery. Ideally I would want to change this out for a victron unit. I’m not sure what size I would need plus the big confusion for me is the wiring. The mppt victron controllers have one terminal for connection to the battery.

What or how do I go about wiring my setup to make this work? If I have a B2B installed, can I just connect to 1 battery and assume that the charge will be sent to both batteries through the B2B or does not not do that? Sorry if that’s a stupid question!


both battery outputs currently have 15a fuses in line with them.

Grateful for any help!!

MPPT SmartSolarLithium Batteryorion-tr smart
2 |3000

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